CPC Subgroup
G01N 29/07 by measuring propagation velocity or propagation time of acoustic waves
Full Title
Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object (G01N3/00 - G01N27/00 take precedence) > Analysing solids (using acoustic emission techniques G01N29/14) > by measuring propagation velocity or propagation time of acoustic waves
1 direct subcode
Child Classifications
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